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000403175 0247_ $$2arXiv$$aarXiv:1804.11152
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000403175 0881_ $$aDESY-18-042; arXiv:1804.11152
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000403175 088__ $$2arXiv$$aarXiv:1804.11152
000403175 1001_ $$0P:(DE-H253)PIP1023675$$aConnor, P.$$b0$$udesy
000403175 245__ $$aCollinear and TMD parton densities from fits to precision DIS measurements in the parton branching method
000403175 260__ $$c2018
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000403175 520__ $$aCollinear and transverse momentum dependent (TMD) parton densities are obtained from fits to precision measurements of deep inelastic scattering (DIS) cross sections at HERA. The parton densities are evolved by DGLAP evolution with next-to-leading-order (NLO) splitting functions using the parton branching method, allowing one to determine simultaneously collinear and TMD densities for all flavors over a wide range in $x$, $\mu^2$ and $k_t$, relevant for predictions at the LHC. The DIS cross section is computed from the parton densities using perturbative NLO coefficient functions. Parton densities satisfying angular ordering conditions are presented. Two sets of parton densities are obtained, differing in the renormalization scale choice for the argument in the strong coupling $\alpha_s$. This is taken to be either the evolution scale $\mu$ or the transverse momentum $q_t$. While both choices yield similarly good $\chi^2$ values for the fit to DIS measurements, especially the gluon density turns out to differ between the two sets. The TMD densities are used to predict the transverse momentum spectrum of $Z$-bosons at the LHC.
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000403175 650_7 $$2autogen$$agluon: density
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000403175 650_7 $$2autogen$$aCERN LHC Coll
000403175 650_7 $$2autogen$$atransverse momentum dependence
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000403175 7001_ $$0P:(DE-H253)PIP1024662$$aHautmann, F.$$b1
000403175 7001_ $$0P:(DE-H253)PIP1002297$$aJung, Hannes$$b2$$eCorresponding author$$udesy
000403175 7001_ $$0P:(DE-H253)PIP1023676$$aLelek, A.$$b3$$udesy
000403175 7001_ $$0P:(DE-H253)PIP1005768$$aRadescu, V.$$b4
000403175 7001_ $$0P:(DE-H253)PIP1032964$$aZlebcik, R.$$b5$$udesy
000403175 7001_ $$0P:(DE-H253)PIP1023004$$aBermudez Martinez, Armando$$b6$$udesy
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000403175 9141_ $$y2018
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